National Network of Regional Coastal Monitoring Programmes
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Note that these are real-time data and are not quality-controlled. Long-range graphs are plotted from a randomised subsample of half-hourly data.
Porthleven
Average values for 2024
| Month | Hs (m) | Tp (s) | Tz (s) | Dirp (degrees) | TSea (degrees C) |
|---|---|---|---|---|---|
| January | 1.74 | 11.7 | 6.8 | 230 | 10.3 |
| February | 1.81 | 11.1 | 5.6 | 233 | 10.5 |
| March | 1.7 | 10.5 | 5.6 | 233 | 10.4 |
| April | 1.53 | 10.3 | 5.2 | 231 | 11.3 |
| May | 0.85 | 9.8 | 5.1 | 229 | 13.4 |
| June | 0.71 | 7.6 | 4.4 | 240 | 14.2 |
| July | 0.76 | 8.3 | 4.5 | 232 | 15.5 |
| August | 1.04 | 8.8 | 4.8 | 235 | 16.8 |
| September | 0.8 | 8.5 | 4.8 | 236 | 16.1 |
| October | 1.35 | 10.5 | 5.8 | 233 | 15 |
| November | 1.26 | 10.1 | 5.7 | 233 | 14 |
| December | 1.32 | 10.6 | 5.5 | 236 | 12 |
